Various Crude Oil Recovery Methods

Crude oil recovery methods are techniques used to extract oil from reservoirs. These methods are generally categorized into three main stages: primary, secondary, and tertiary (or enhanced) recovery. Each stage involves different technologies and approaches depending on the reservoir characteristics and the amount of oil that can be economically recovered.?

Primary(15-20%)

Oil comes? to the well bore because of the gas pressure available? within the reservoir.?

Secondary (20-50%)

Water/Gas is injected? into the reservoir to maintain the energy so as to facilitate oil /gas to flow

Tertiary (50-70%)Enhanced oil recovery? ?is a method to recover? ?the oil of nature which is not possible? to recover? as above,